📄 highslide.js
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/******************************************************************************
Name: Highslide JS
Version: 3.3.6 (January 6 2008)Config: defaultAuthor: Torstein H鴑si
Support: http://vikjavev.no/highslide/forum
Licence:
Highslide JS is licensed under a Creative Commons Attribution-NonCommercial 2.5
License (http://creativecommons.org/licenses/by-nc/2.5/).
You are free:
* to copy, distribute, display, and perform the work
* to make derivative works
Under the following conditions:
* Attribution. You must attribute the work in the manner specified by the
author or licensor.
* Noncommercial. You may not use this work for commercial purposes.
* For any reuse or distribution, you must make clear to others the license
terms of this work.
* Any of these conditions can be waived if you get permission from the
copyright holder.
Your fair use and other rights are in no way affected by the above.
******************************************************************************/
var hs = {
// Apply your own settings here, or override them in the html file.
graphicsDir : 'highslide/graphics/',
restoreCursor : 'zoomout.cur', // necessary for preload
expandSteps : 10, // number of steps in zoom. Each step lasts for duration/step milliseconds.
expandDuration : 250, // milliseconds
restoreSteps : 10,
restoreDuration : 250,
marginLeft : 5,
marginRight : 5,
marginTop : 5,
marginBottom : 5,
zIndexCounter : 1001, // adjust to other absolutely positioned elements
restoreTitle : 'Click to close image, click and drag to move. Use arrow keys for next and previous.',
loadingText : 'Loading...',
loadingTitle : 'Click to cancel',
loadingOpacity : 0.75,
focusTitle : 'Click to bring to front',
allowMultipleInstances: true,
numberOfImagesToPreload : 5,
captionSlideSpeed : 1, // set to 0 to disable slide in effect
padToMinWidth : false, // pad the popup width to make room for wide caption
outlineWhileAnimating : 2, // 0 = never, 1 = always, 2 = HTML only
outlineStartOffset : 3, // ends at 10
fullExpandTitle : 'Expand to actual size',
fullExpandPosition : 'bottom right',
fullExpandOpacity : 1,
showCredits : true, // you can set this to false if you want
creditsText : 'Powered by <i>Highslide JS</i>',
creditsHref : 'http://vikjavev.no/highslide/',
creditsTitle : 'Go to the Highslide JS homepage',
enableKeyListener : true,
// These settings can also be overridden inline for each image
captionId : null,
spaceForCaption : 30, // leaves space below images with captions
slideshowGroup : null, // defines groups for next/previous links and keystrokes
minWidth: 200,
minHeight: 200,
allowSizeReduction: true, // allow the image to reduce to fit client size. If false, this overrides minWidth and minHeight
outlineType : 'drop-shadow', // set null to disable outlines
wrapperClassName : 'highslide-wrapper', // for enhanced css-control
// END OF YOUR SETTINGS
// declare internal properties
preloadTheseImages : [],
continuePreloading: true,
expanders : [],
overrides : [
'allowSizeReduction',
'outlineType',
'outlineWhileAnimating',
'spaceForCaption',
'captionId',
'captionText',
'captionEval',
'wrapperClassName',
'minWidth',
'minHeight',
'slideshowGroup'
],
overlays : [],
faders : [],
pendingOutlines : {},
clones : {},
ie : (document.all && !window.opera),
safari : /Safari/.test(navigator.userAgent),
geckoMac : /Macintosh.+rv:1\.[0-8].+Gecko/.test(navigator.userAgent),
$ : function (id) {
return document.getElementById(id);
},
push : function (arr, val) {
arr[arr.length] = val;
},
createElement : function (tag, attribs, styles, parent, nopad) {
var el = document.createElement(tag);
if (attribs) hs.setAttribs(el, attribs);
if (nopad) hs.setStyles(el, {padding: 0, border: 'none', margin: 0});
if (styles) hs.setStyles(el, styles);
if (parent) parent.appendChild(el);
return el;
},
setAttribs : function (el, attribs) {
for (var x in attribs) el[x] = attribs[x];
},
setStyles : function (el, styles) {
for (var x in styles) {
try {
if (hs.ie && x == 'opacity') el.style.filter = 'alpha(opacity='+ (styles[x] * 100) +')';
else el.style[x] = styles[x];
}
catch (e) {}
}
},
ieVersion : function () {
arr = navigator.appVersion.split("MSIE");
return parseFloat(arr[1]);
},
getPageSize : function () {
var iebody = document.compatMode && document.compatMode != "BackCompat"
? document.documentElement : document.body;
var width = hs.ie ? iebody.clientWidth :
(document.documentElement.clientWidth || self.innerWidth),
height = hs.ie ? iebody.clientHeight : self.innerHeight;
return {
width: width,
height: height,
scrollLeft: hs.ie ? iebody.scrollLeft : pageXOffset,
scrollTop: hs.ie ? iebody.scrollTop : pageYOffset
}
},
position : function(el) {
var p = { x: el.offsetLeft, y: el.offsetTop };
while (el.offsetParent) {
el = el.offsetParent;
p.x += el.offsetLeft;
p.y += el.offsetTop;
if (el != document.body && el != document.documentElement) {
p.x -= el.scrollLeft;
p.y -= el.scrollTop;
}
}
return p;
},
expand : function(a, params, custom) {
if (a.getParams) return params;
try {
new hs.Expander(a, params, custom);
return false;
} catch (e) { return true; }
},
focusTopmost : function() {
var topZ = 0, topmostKey = -1;
for (var i = 0; i < hs.expanders.length; i++) {
if (hs.expanders[i]) {
if (hs.expanders[i].wrapper.style.zIndex && hs.expanders[i].wrapper.style.zIndex > topZ) {
topZ = hs.expanders[i].wrapper.style.zIndex;
topmostKey = i;
}
}
}
if (topmostKey == -1) hs.focusKey = -1;
else hs.expanders[topmostKey].focus();
},
getAdjacentAnchor : function(key, op) {
var aAr = document.getElementsByTagName('A'), hsAr = {}, activeI = -1, j = 0;
for (var i = 0; i < aAr.length; i++) {
if (hs.isHsAnchor(aAr[i]) && ((hs.expanders[key].slideshowGroup == hs.getParam(aAr[i], 'slideshowGroup')))) {
hsAr[j] = aAr[i];
if (hs.expanders[key] && aAr[i] == hs.expanders[key].a) {
activeI = j;
}
j++;
}
}
return hsAr[activeI + op];
},
getParam : function (a, param) {
a.getParams = a.onclick;
var p = a.getParams();
a.getParams = null;
return (p && typeof p[param] != 'undefined') ? p[param] : hs[param];
},
getSrc : function (a) {
var src = hs.getParam(a, 'src');
if (src) return src;
return a.href;
},
getNode : function (id) {
var node = hs.$(id), clone = hs.clones[id], a = {};
if (!node && !clone) return null;
if (!clone) {
clone = node.cloneNode(true);
clone.id = '';
hs.clones[id] = clone;
return node;
} else {
return clone.cloneNode(true);
}
},
purge : function(d) {
if (!hs.ie) return;
var a = d.attributes, i, l, n;
if (a) {
l = a.length;
for (var i = 0; i < l; i += 1) {
n = a[i].name;
if (typeof d[n] === 'function') {
d[n] = null;
}
}
}
a = d.childNodes;
if (a) {
l = a.length;
for (var i = 0; i < l; i += 1) {
hs.purge(d.childNodes[i]);
}
}
},
previousOrNext : function (el, op) {
var exp = hs.getExpander(el);
try {
var adj = hs.upcoming = hs.getAdjacentAnchor(exp.key, op);
adj.onclick();
} catch (e){}
try { exp.close(); } catch (e) {}
return false;
},
previous : function (el) {
return hs.previousOrNext(el, -1);
},
next : function (el) {
return hs.previousOrNext(el, 1);
},
keyHandler : function(e) {
if (!e) e = window.event;
if (!e.target) e.target = e.srcElement; // ie
if (e.target.form) return; // form element has focus
var op = null;
switch (e.keyCode) {
case 34: // Page Down
case 39: // Arrow right
case 40: // Arrow down
op = 1;
break;
case 33: // Page Up
case 37: // Arrow left
case 38: // Arrow up
op = -1;
break;
case 27: // Escape
case 13: // Enter
op = 0;
}
if (op !== null) {
hs.removeEventListener(document, 'keydown', hs.keyHandler);
try { if (!hs.enableKeyListener) return true; } catch (e) {}
if (e.preventDefault) e.preventDefault();
else e.returnValue = false;
if (op == 0) {
try { hs.getExpander().close(); } catch (e) {}
return false;
} else {
return hs.previousOrNext(hs.focusKey, op);
}
} else return true;
},
registerOverlay : function (overlay) {
hs.push(hs.overlays, overlay);
},
getWrapperKey : function (element) {
var el, re = /^highslide-wrapper-([0-9]+)$/;
// 1. look in open expanders
el = element;
while (el.parentNode) {
if (el.id && re.test(el.id)) return el.id.replace(re, "$1");
el = el.parentNode;
}
// 2. look in thumbnail
el = element;
while (el.parentNode) {
if (el.tagName && hs.isHsAnchor(el)) {
for (var key = 0; key < hs.expanders.length; key++) {
exp = hs.expanders[key];
if (exp && exp.a == el) return key;
}
}
el = el.parentNode;
}
},
getExpander : function (el) {
try {
if (!el) return hs.expanders[hs.focusKey];
if (typeof el == 'number') return hs.expanders[el];
if (typeof el == 'string') el = hs.$(el);
return hs.expanders[hs.getWrapperKey(el)];
} catch (e) {}
},
isHsAnchor : function (a) {
return (a.onclick && a.onclick.toString().replace(/\s/g, ' ').match(/hs.(htmlE|e)xpand/));
},
cleanUp : function () {
for (var i = 0; i < hs.expanders.length; i++)
if (hs.expanders[i] && hs.expanders[i].isExpanded) hs.focusTopmost();
},
mouseClickHandler : function(e)
{
if (!e) e = window.event;
if (e.button > 1) return true;
if (!e.target) e.target = e.srcElement;
var el = e.target;
while (el.parentNode
&& !(/highslide-(image|move|html|resize)/.test(el.className)))
{
el = el.parentNode;
}
var exp = hs.getExpander(el);
if (exp && e.type == 'mousedown') {
if (e.target.form) return;
var match = el.className.match(/highslide-(image|move|resize)/);
if (match) {
hs.dragArgs = { exp: exp , type: match[1], left: exp.x.min, width: exp.x.span, top: exp.y.min,
height: exp.y.span, clickX: e.clientX, clickY: e.clientY };
if (hs.dragArgs.type == 'image') exp.content.style.cursor = 'move';
hs.addEventListener(document, 'mousemove', hs.dragHandler);
if (e.preventDefault) e.preventDefault(); // FF
if (/highslide-(image|html)-blur/.test(exp.content.className)) {
exp.focus();
hs.hasFocused = true;
}
return false;
}
} else if (e.type == 'mouseup') {
hs.removeEventListener(document, 'mousemove', hs.dragHandler);
if (hs.dragArgs) {
if (hs.dragArgs.type == 'image')
hs.dragArgs.exp.content.style.cursor = hs.styleRestoreCursor;
var hasDragged = (Math.abs(hs.dragArgs.dX) + Math.abs(hs.dragArgs.dY) > 0);
if (!hasDragged &&!hs.hasFocused && !/(move|resize)/.test(hs.dragArgs.type)) {
exp.close();
}
else if (hasDragged || (!hasDragged && hs.hasHtmlexpanders)) {
hs.dragArgs.exp.redoShowHide();
}
hs.hasFocused = false;
hs.dragArgs = null;
} else if (/highslide-image-blur/.test(el.className)) {
el.style.cursor = hs.styleRestoreCursor;
}
}
},
dragHandler : function(e)
{
if (!hs.dragArgs) return;
if (!e) e = window.event;
var exp = hs.dragArgs.exp;
hs.dragArgs.dX = e.clientX - hs.dragArgs.clickX;
hs.dragArgs.dY = e.clientY - hs.dragArgs.clickY;
exp.move(hs.dragArgs);
return false;
},
addEventListener : function (el, event, func) {
try {
el.addEventListener(event, func, false);
} catch (e) {
try {
el.detachEvent('on'+ event, func);
el.attachEvent('on'+ event, func);
} catch (e) {
el['on'+ event] = func;
}
}
},
removeEventListener : function (el, event, func) {
try {
el.removeEventListener(event, func, false);
} catch (e) {
try {
el.detachEvent('on'+ event, func);
} catch (e) {
el['on'+ event] = null;
}
}
},
preloadFullImage : function (i) {
if (hs.continuePreloading && hs.preloadTheseImages[i] && hs.preloadTheseImages[i] != 'undefined') {
var img = document.createElement('img');
img.onload = function() { hs.preloadFullImage(i + 1); };
img.src = hs.preloadTheseImages[i];
}
},
preloadImages : function (number) {
if (number && typeof number != 'object') hs.numberOfImagesToPreload = number;
var a, re, j = 0;
var aTags = document.getElementsByTagName('A');
for (var i = 0; i < aTags.length; i++) {
a = aTags[i];
re = hs.isHsAnchor(a);
if (re && re[0] == 'hs.expand') {
if (j < hs.numberOfImagesToPreload) {
hs.preloadTheseImages[j] = hs.getSrc(a);
j++;
}
}
}
// preload outlines
new hs.Outline(hs.outlineType, function () { hs.preloadFullImage(0)} );
// preload cursor
var cur = hs.createElement('img', { src: hs.graphicsDir + hs.restoreCursor });
},
genContainer : function () {
if (!hs.container) {
hs.container = hs.createElement('div',
null,
{ position: 'absolute', left: 0, top: 0, width: '100%', zIndex: hs.zIndexCounter },
document.body,
true
);
hs.loading = hs.createElement('a',
{
className: 'highslide-loading',
title: hs.loadingTitle,
innerHTML: hs.loadingText,
href: 'javascript:void(0)'
},
{
position: 'absolute',
opacity: hs.loadingOpacity,
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